Re: [Xen-devel] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

For passthrough to HVM guests without hardware IOMMU (e.g., VT-d), I
developed the attached prototype patch. I think this may already be in the
XCI tree. It also applies directly to Xen 3.4 branch, and could be applied
quite easily with a small amount of manual intervention to xen-unstable. If
passthough on 'old' system without hardware assistance is what you're after,
you might want to give the patch a go.

 -- Keir

On 29/08/2009 14:48, "Tim Moore" <timothy.moore@xxxxxxxxxxx> wrote:

> All,
>  
> I have compiled a list of the Neocleus patches that were released in Sept 07
> and apply to changeset:  15730 (a long time ago!)
>  
> It looks like Neocleus have continued development and may have a more recent
> set of patches, see http://www.neocleus.com/
>  
> As a person with interest in this subject, I have registered for their
> "Insider Programme" but have not received an communication. I am very
> interested in what they have been working on as it all seems to be behind
> closed doors ! http://www.neocleus.com/insider.php
>  
> Anyway here are the old set of 1:1 patches:
>  
> [VTD-NEO][patch 0/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/xbk2o4mzz4coufzp
>  
> [VTD-NEO][patch 1/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/emyygrqw3crbdhjy
>  
> [VTD-NEO][patch 2/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/kpbxkyvpeiddxnga
>  
> [VTD-NEO][patch 3/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/wqd3gvgiwwrf7ct5
>  
> [VTD-NEO][patch 4/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/cdqfuc6pgyz7vqpc
>  
> [VTD-NEO][patch 5/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/nbx6pk362bdziw4u
>  
> [VTD-NEO][patch 6/6] Intel VT-d/Neocleus 1:1 mreged code for PCI passthrough
> http://markmail.org/message/m2hyq2ol6r57ghhf
>  
> I hope this helps explain that there is a lot more to be done, and from these
> patches we may be able to extract the relevant parts .. there seems to be a
> lot of functionality in these patches that may already be present in Xen, but
> I haven't deeply reviewed the contents (and probably not the best man to do
> so!)
>  
> Tim
>

one_to_one.patch
Description: Binary data

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